1. Department of Ophthalmology, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
2. Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea
3. Division of Rheumatology, Department of Internal Medicine, Seoul National University College of Medicine, Seoul National University Hospital, Seoul, Korea
4. Center for Preventive Medicine and Public Health, Seoul National University Bundang Hospital, Seongnam, Korea